Home / 78,918,160.17-117,545,071.04-75,377,269.12

Finding the Fourth Proportional to 78,918,160.17, 117,545,071.04 and 75,377,269.12

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Solution

The fourth proportional to 78,918,160.17, 117,545,071.04 and 75,377,269.12 is: 112,271,072.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,918,160.17 : 117,545,071.04 = 75,377,269.12 : x
  2. Step 2: Convert to fraction form
    78,918,160.17/117,545,071.04 = 75,377,269.12/x
  3. Step 3: Cross multiply
    78,918,160.17x = 117,545,071.04 × 75,377,269.12
  4. Step 4: Simplify right side
    78,918,160.17x = 8,860,226,453,556,592
  5. Step 5: Solve for x
    x = 8,860,226,453,556,592/78,918,160.17
  6. Step 6: Final answer
    x = 112,271,072.13

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.